100 Amp Cable Size at 300 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 100 A over 300 m (984.3 ft).
Copper Cable (≤3% Drop)240 mm²Drop: 5.35V (2.33%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 5.29V (2.3%)
Voltage at Load224.7 VLine Loss: 535.0 W
Max Power & Breaker23.0 kW100A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 100A at 300m
| Cross-Section (mm²) | Cu Ampacity | Al Ampacity | Cu Voltage Drop | Load Voltage | Al Voltage Drop | Power Loss | Status |
|---|---|---|---|---|---|---|---|
| 1.5 mm² | 16 A | 12 A | 856.0 V (372.17%) | 0.0 V | 1412.0 V (613.91%) | 85600.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 513.6 V (223.3%) | 0.0 V | 847.2 V (368.35%) | 51360.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 321.0 V (139.57%) | 0.0 V | 529.5 V (230.22%) | 32100.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 214.0 V (93.04%) | 16.0 V | 353.0 V (153.48%) | 21400.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 128.4 V (55.83%) | 101.6 V | 211.8 V (92.09%) | 12840.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 80.25 V (34.89%) | 149.8 V | 132.38 V (57.55%) | 8025.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 51.36 V (22.33%) | 178.6 V | 84.72 V (36.83%) | 5136.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 36.69 V (15.95%) | 193.3 V | 60.51 V (26.31%) | 3668.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 25.68 V (11.17%) | 204.3 V | 42.36 V (18.42%) | 2568.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 18.34 V (7.98%) | 211.7 V | 30.26 V (13.16%) | 1834.3 W | Drop High |
| 95 mm² | 232 A | 181 A | 13.52 V (5.88%) | 216.5 V | 22.29 V (9.69%) | 1351.6 W | Drop High |
| 120 mm² | 269 A | 210 A | 10.7 V (4.65%) | 219.3 V | 17.65 V (7.67%) | 1070.0 W | ~ ≤5% |
| 150 mm² | 309 A | 241 A | 8.56 V (3.72%) | 221.4 V | 14.12 V (6.14%) | 856.0 W | ~ ≤5% |
| 185 mm² | 353 A | 275 A | 6.94 V (3.02%) | 223.1 V | 11.45 V (4.98%) | 694.1 W | ~ ≤5% |
| 240 mm² | 415 A | 324 A | 5.35 V (2.33%) | 224.7 V | 8.82 V (3.84%) | 535.0 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 4.28 V (1.86%) | 225.7 V | 7.06 V (3.07%) | 428.0 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 3.21 V (1.4%) | 226.8 V | 5.29 V (2.3%) | 321.0 W | ✓ OK (≤3%) |
FAQ — 100 Amp Cable Size at 300 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 100A at 300 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 240 mm² copper cable for 100A over 300m at 230V (voltage drop: 5.35V or 2.33%).
What is the power capacity of 100A at 230V?
At unity power factor, 100A at 230V supports 23.0 kW with a standard 100A circuit breaker.
Related Lengths & Currents (230V)
100A · 5m (230V)100A · 10m (230V)100A · 15m (230V)100A · 20m (230V)100A · 25m (230V)100A · 30m (230V)100A · 35m (230V)100A · 40m (230V)100A · 45m (230V)100A · 50m (230V)100A · 60m (230V)100A · 70m (230V)10A · 300m (230V)16A · 300m (230V)20A · 300m (230V)25A · 300m (230V)32A · 300m (230V)40A · 300m (230V)50A · 300m (230V)63A · 300m (230V)80A · 300m (230V)125A · 300m (230V)160A · 300m (230V)200A · 300m (230V)